Parts
At HK Parts, we offer a wide range of high-quality Heckler and Koch accessories and components for your favorite firearms. Whether you are upgrading a Heckler and Koch pistol or rifle, or building with parts kits, we have you covered. Explore top-rated components for VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, find the parts you need to enhance performance, reliability, and function.
Popular upgrades include match triggers, threaded barrels, compensators, optic plates, and extended magazines. Rifle owners often add enhanced stocks, forearms, and ambidextrous controls.
MP5 and MP5K kits are top sellers, giving shooters authentic components for iconic builds. G36 and HK416 kits are also highly sought after by collectors and professionals alike.
HKP offers the world’s largest H&K-focused catalog, with better availability, faster fulfillment, and expert support compared to general retailers.
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HK91, G3 Fixed Buttstock, Complete with Enhanced Heavy Buffer - Surplus
H&K Heckler & Koch
$269.95German G3, 91, PTR Stock complete - Surplus Used black German surplus stock complete. Ready to install on your HK or clone rifle. Used in perfect working condition and each stock includes all parts...HKP-16269$269.95 -
On Sale
HK G3 Parts Kit - Tungsten Filled Carrier - (Greek HK Contract)
EBO
Now: $350.96Was: $389.95HK Contract Greek EBO G3 .308/7.62 X 51mm Surplus Parts Kit Rare and HK Greek EBO Surplus G3 parts kits with the Tungsten filled bolt carriers. Each demilled parts kit comes with all parts from a...HKP-17695Now: $350.96Was: $389.95 -
On Sale
Handguard Rail Screw - Tactical
PTR
Now: $0.63Was: $0.69PTR Tactical Handguard Rail Screw The 6, 4, 3 & 2 inch rail sections use these screws to attach themselves to the tactical forearm. This is the screw that is used on all the tactical forearm rails (2...HKP-16744Now: $0.63Was: $0.69 -
HK MP5 A3 Retractable Buttstock Bushing
H&K Heckler & Koch
$14.95HK MP5 A3 Retractable Stock Cap, Bushing- MP5 Navy Stock Newer 2 generation stock cap bushing for the factory MP5-N series of A3 stocks.Not for use on the 1st generation all metal (70-80's) A3...HKP-16405$14.95 -
Left Side Ambidextrous Selector Lever FBI - 0,1
H&K Heckler & Koch
$124.99Left Side Ambidextrous Selector Lever FBI - 0,1 Compatible with all ambi style housings and ambidextrous 0,1, trigger packs and housings.HKP-00121$124.99 -
Ambi Trigger Pack - Semi Auto 0,1 - 9mm - Flat Trigger - US Made 922r Parts
HKP HK Parts
$349.95Ambidextrius Trigger Pack with Flat Trigger For MP5, HK94 - 4 US 922R Compliant Parts HK MP5/94 9mm Semi Auto Trigger Pack complete with Flat Trigger installed. Assembled and ready install on your...HKP-18512$349.95 -
HK91, G3 Cocking Tube with Hanger - Ribbed -Used
H&K Heckler & Koch
$34.95HK German HK G3 & HK 91 Ribbed Cocking Tube With Hanger Installed - Used Used surplus condition, take-offs from demilled G3 firearms. They may have dings, dents, and heavy wear. Still in serviceable...HKP-00719$34.95 -
On Sale
HK91, G3, PTR Magazine - 20 Round - Date Coded - USED
H&K Heckler & Koch
Now: $18.71Was: $34.95Heckler and Koch HK91, G3, PTR 20 Round Date Coded Magazine - USED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY DENTS AND PITTINGHKP-99439-MNow: $18.71Was: $34.95 -
On Sale
HK USP Compact Flat Tracker Takedown Lever - Volker Precision
Volker Precision
Now: $90.37Was: $112.95HK USP Compact Flat Tracker - Volker Precision Volker Precision flat tracker for USP Compact models in all calibers. Available exclusively at HK Parts Compatible With: <HKP-22448Now: $90.37Was: $112.95 -
HK417, MR762 Takedown Pin - Front - A4 Style
H&K Heckler & Koch
$49.95H&K MR762 A4 Receiver Front Takedown Pin German-made factory pivot pin for the MR762 A4. Will work with A1 models as well.HKP-21958$49.95 -
On Sale
HK P30SK Compensator - MOD 1
HKP HK Parts
Now: $143.96Was: $179.95HK Parts MOD 1 Compensator: H&K P30SK The HK Parts MOD 1 compensator perfectly blends form and function, setting a new standard in muzzle control. Experience a significant reduction in muzzle flip...HKP-21798Now: $143.96Was: $179.95 -
HK USP Conversion Barrel - .40 S&W to 9mm - Threaded - 13.5x1
RCM
$214.95RCM HK USP .40 to 9mm Conversion Barrel - Threaded - 13.5x1HKP-21789$214.95